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dc.contributor.author
Vincent, Christian
dc.contributor.author
Le Meur, Emmanuel
dc.contributor.author
Six, Delphine
dc.contributor.author
Possenti, Philippe
dc.contributor.author
Lefebvre, Eric
dc.contributor.author
Funk, Martin
dc.date.accessioned
2020-07-13T12:20:15Z
dc.date.available
2017-06-10T16:48:23Z
dc.date.available
2020-07-13T12:20:15Z
dc.date.issued
2007-08-28
dc.identifier.issn
0094-8276
dc.identifier.issn
1944-8007
dc.identifier.other
10.1029/2007GL029933
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/66638
dc.description.abstract
Temperatures were measured in two deep boreholes drilled at the same location in the ice at Col du Dôme (4250 m) in 1994 and 2005, providing clear evidence of atmospheric warming. The 1994 temperature profile was already far from steady state conditions. Results from a heat transfer model reveal that the englacial temperature increase cannot be explained solely by atmospheric temperature rise. The latent heat produced by the refreezing of surface meltwater below the surface also contributes to the englacial temperature increase. Although surface melting is normally very low at this altitude, this contribution became significant after 1980 for temperatures at the top of the borehole. Simulations for different climatic scenarios show that glaciated areas located between 3500 and 4250 in could become temperate in the future. This warming could have a major impact on the stability of hanging glaciers frozen to their beds if the melting point is reached. Copyright 2007 by the American Geophysical Union.
en_US
dc.language.iso
en
en_US
dc.publisher
American Geophysical Union
en_US
dc.title
Climate warming revealed by englacial temperatures at Col du Dome (4250 m, Mont Blanc area)
en_US
dc.type
Journal Article
dc.date.published
2007-08-18
ethz.journal.title
Geophysical Research Letters
ethz.journal.volume
34
en_US
ethz.journal.issue
16
en_US
ethz.journal.abbreviated
Geophys. Res. Lett.
ethz.pages.start
L16502
en_US
ethz.size
5 p.
en_US
ethz.identifier.wos
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-10T16:48:51Z
ethz.source
ECIT
ethz.identifier.importid
imp593650948bba671196
ethz.ecitpid
pub:106137
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-17T09:36:54Z
ethz.rosetta.lastUpdated
2021-02-15T15:26:45Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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